The stories Mordred heard told of white dragons breathing ice, cold, and frost, but stories don't always capture the raw elemental power of a thing like a full-grown chromatic dragon.
"We didn't see anything with it...nothing unusual as we approached the valley, not that I recall," Obram says in response to Mordred's question. To Domarc, he explains that some of the survivors were afraid to return to Solyhill and wanted to hide, others wanted to look for a closer settlement for aid and shelter, and a few even insisted that their mandate to press on to their destination was still in effect.
Lieutenant Horii fills in some additional information. One soldier fled on foot alone and arrived back at Solyhill many hours before Corporal Obram's party, and another pair returned the following day. Ultimately, only Obram and the soldier he dragged back on his shield were allowed to remain at Solyhill, due to the extent of their injuries. The others were taken back to Hazard soon after the first investigators arrived.